Re: [PATCH 2/2] deal with deadlock in d_walk()

[Greg KH <gregkh@linuxfoundation.org>]

On Thu, Feb 05, 2015 at 03:33:41PM +0800, hujianyang wrote:
> From: Al Viro <viro@zeniv.linux.org.uk>
> 
> commit ca5358ef75fc69fee5322a38a340f5739d997c10 upstream.
> 
> ... by not hitting rename_retry for reasons other than rename having
> happened.  In other words, do _not_ restart when finding that
> between unlocking the child and locking the parent the former got
> into __dentry_kill().  Skip the killed siblings instead...
> 
> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
> Cc: Ben Hutchings <ben@decadent.org.uk>
> [hujianyang: Backported to 3.10 refer to the work of Ben Hutchings in 3.2:
>  - As we only have try_to_ascend() and not d_walk(), apply this
>    change to all callers of try_to_ascend()
>  - Adjust context to make __dentry_kill() apply to d_kill()]
> Signed-off-by: hujianyang <hujianyang@huawei.com>
> ---
>  fs/dcache.c |  102 ++++++++++++++++++++++++++++++++++++-----------------------
>  1 files changed, 62 insertions(+), 40 deletions(-)

Can you provide a version for 3.14-stable as well?

thanks,

greg k-h